<!doctype html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">

  <link rel="icon" href="icon.png">
  <link rel="apple-touch-icon" href="/icon.png">
  <link rel="stylesheet" href="style.css">
  <link rel="manifest" href="manifest.json">

  <link id="flipper-theme-import" rel="stylesheet">

  <title>Flipper</title>
  <script>
    window.flipperConfig = {
      theme: 'light',
      entryPoint: 'bundle.js',
      debug: false,
    }
  </script>
  <style>
    #loading {
      -webkit-app-region: drag;
      z-index: 999999;
      position: absolute;
      top: 0;
      left: 0;
      bottom: 0;
      right: 0;
      padding: 50px;
      overflow: auto;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: #525252;
      text-align: center;
    }

    .__infinity-dev-box-error {
      background-color: red;
      font-family: monospace;
      font-size: 12px;
      z-index: 10;
      bottom: 0;
      left: 0;
      position: absolute;
    }

  </style>
</head>

<body>
  <div id="root">
    <div id="loading">
      Loading...
    </div>
  </div>

  <div class="__infinity-dev-box __infinity-dev-box-error" hidden />
  <script>
      (function () {
        // FIXME: needed to make Metro work
        window.global = window;
        let suppressErrors = false;

        function openError(text) {
          if (suppressErrors) {
            return;
          }

          let box = document.getElementById('loading');
          if (box) {
            box.innerText = text;
          }
          else {
            box = document.querySelector('.__infinity-dev-box-error');
            box.removeAttribute('hidden');
            box.innerText = text;
            box.appendChild(closeButton);
          }
        }
        window.flipperShowError = openError;
        window.flipperHideError = () => {
          const box = document.querySelector('.__infinity-dev-box-error');
          box.setAttribute('hidden', true);
        }

        const closeButton = document.createElement('button');
        closeButton.addEventListener('click', window.flipperHideError);
        closeButton.textContent = 'X';

        // load correct theme (n.b. this doesn't handle system value specifically, will assume light in such cases)
        try {
          if (window.flipperConfig.theme === 'dark') {
            document.getElementById('flipper-theme-import').href = "themes/dark.css";
          } else {
            document.getElementById('flipper-theme-import').href = "themes/light.css";
          }
        } catch (e) {
          console.error("Failed to initialize theme", e);
          document.getElementById('flipper-theme-import').href = "themes/light.css";
        }

        function init() {
          const script = document.createElement('script');
          script.src = window.flipperConfig.entryPoint;

          script.onerror = (e) => {
            openError('Script failure. Check Chrome console for more info.');
          };

          document.body.appendChild(script);
        }

        if ('serviceWorker' in navigator) {
          navigator.serviceWorker
            .register('/service-worker.js')
            .then(() => {
              console.log('Flipper Service Worker has been registered');
            })
            .catch((e) => {
              console.error('Flipper failed to register Service Worker', e);
            });
        }

        window.addEventListener('beforeinstallprompt', (e) => {
          // Prevent Chrome 67 and earlier from automatically showing the prompt.
          e.preventDefault();
          // Stash the event so it can be triggered later.
          global.PWAppInstallationEvent = e;
        });

        init();
      })();
  </script>
</body>

</html>
